Public water system · CA4200619
ActiveSanta Ynez Rancho Estates
At a glance
Santa Ynez Rancho Estates (PWSID CA4200619) is an active community water system in Santa Barbara County, California. It reports serving 304 people through 92 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is health-based, and the most recent began in April 2006.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
304
Service connections
92
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Santa Ynez Rancho Estates compare with other water systems in Santa Barbara County?
By EPA's size categories, Santa Ynez Rancho Estates is a very small system (500 people or fewer). Santa Barbara County has 150 active public water systems. Its population served is well below the county average of 3,255 people per system, and accounts for less than 0.1% of the 488,317 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Santa Ynez Rancho Estates is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Santa Ynez Rancho Estates?
EPA lists Santa Ynez Rancho Estates as privately owned. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 121 of the 150 active systems in Santa Barbara County (81%) are also privately owned.
Does Santa Ynez Rancho Estates have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in April 2006. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2006-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Santa Ynez Rancho Estates: frequently asked questions
Who runs Santa Ynez Rancho Estates?
Santa Ynez Rancho Estates (PWSID CA4200619) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Santa Ynez Rancho Estates serve?
Santa Ynez Rancho Estates reports serving 304 people through 92 service connections in Santa Barbara County, California.
Where does Santa Ynez Rancho Estates get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Santa Ynez Rancho Estates have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in April 2006. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Santa Ynez Rancho Estates' water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list one violation for this system; it is health-based, and the most recent began in April 2006. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Santa Ynez Rancho Estates' water quality report?
As a community water system, Santa Ynez Rancho Estates must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Santa Barbara County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Santa Maria Utilities Department | Santa Barbara | 109,477 | Community | Purchased surface water |
| City of Santa Barbara Water Department | Santa Barbara | 99,323 | Community | Surface water |
| Goleta Water District | Santa Barbara | 84,462 | Community | Surface water |
| Lompoc-City Water Utility Div | Santa Barbara | 40,473 | Community | Surface water |
| Golden State Water Company - Orcutt | Santa Barbara | 34,102 | Community | Purchased surface water |
| Carpinteria Valley Water District | Santa Barbara | 15,996 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Santa Ynez Rancho Estates, PWSID CA4200619, California”, https://aquacensus.com/water-systems/california/santa-ynez-rancho-estates-ca4200619 (data as of October 1, 2026).